<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP version 4.0													  |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group								|
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license,	   |
// | that is bundled with this package in the file LICENSE, and is		|
// | available at through the world-wide-web at						   |
// | http://www.php.net/license/2_02.txt.								 |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to		  |
// | license@php.net so we can mail you a copy immediately.			   |
// +----------------------------------------------------------------------+
// | Authors: Bertrand Mansion <bmansion@mamasam.com>					 |
// +----------------------------------------------------------------------+
//
// $Id: Regex.php,v 1.1 2006/09/24 17:04:56 jamiesensei Exp $

require_once('HTML/QuickForm/Rule.php');

/**
* Validates values using regular expressions
* @version	 1.0
*/
class HTML_QuickForm_Rule_Regex extends HTML_QuickForm_Rule
{
	/**
	 * Array of regular expressions
	 *
	 * Array is in the format:
	 * $_data['rulename'] = 'pattern';
	 *
	 * @var	 array
	 * @access  private
	 */
	var $_data = array(
					'lettersonly'   => '/^[a-zA-Z]+$/',
					'alphanumeric'  => '/^[a-zA-Z0-9]+$/',
					'numeric'	   => '/(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/',
					'nopunctuation' => '/^[^().\/\*\^\?#!@$%+=,\"\'><~\[\]{}]+$/',
					'nonzero'	   => '/^-?[1-9][0-9]*/'
					);

	/**
	 * Validates a value using a regular expression
	 *
	 * @param	 string	$value	  Value to be checked
	 * @param	 string	$regex	  Regular expression
	 * @access	public
	 * @return	boolean   true if value is valid
	 */
	function validate($value, $regex = null)
	{
		if (isset($this->_data[$this->name])) {
			if (!preg_match($this->_data[$this->name], $value)) {
				return false;
			}
		} else {
			if (!preg_match($regex, $value)) {
				return false;
			}
		}
		return true;
	} // end func validate

	/**
	 * Adds new regular expressions to the list
	 *
	 * @param	 string	$name	   Name of rule
	 * @param	 string	$pattern	Regular expression pattern
	 * @access	public
	 */
	function addData($name, $pattern)
	{
		$this->_data[$name] = $pattern;
	} // end func addData


	function getValidationScript($options = null)
	{
		$regex = isset($this->_data[$this->name]) ? $this->_data[$this->name] : $options;

		return array("  var regex = " . $regex . ";\n", "{jsVar} != '' && !regex.test({jsVar})");
	} // end func getValidationScript

} // end class HTML_QuickForm_Rule_Regex
?>